<?xml version="1.0" encoding="UTF-8" standalone="no"?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /> <title>Chapter 2. Dbstl Container Classes</title> <link rel="stylesheet" href="apiReference.css" type="text/css" /> <meta name="generator" content="DocBook XSL Stylesheets V1.73.2" /> <link rel="start" href="index.html" title="Berkeley DB C++ Standard Template Library API Reference" /> <link rel="up" href="index.html" title="Berkeley DB C++ Standard Template Library API Reference" /> <link rel="prev" href="stldbstl_global_functionsclose_db_cursors.html" title="close_db_cursors" /> <link rel="next" href="db_container.html" title="Chapter 3. Db_container" /> </head> <body> <div xmlns="" class="navheader"> <div class="libver"> <p>Library Version 11.2.5.3</p> </div> <table width="100%" summary="Navigation header"> <tr> <th colspan="3" align="center">Chapter 2. Dbstl Container Classes </th> </tr> <tr> <td width="20%" align="left"><a accesskey="p" href="stldbstl_global_functionsclose_db_cursors.html">Prev</a> </td> <th width="60%" align="center"> </th> <td width="20%" align="right"> <a accesskey="n" href="db_container.html">Next</a></td> </tr> </table> <hr /> </div> <div class="chapter" lang="en" xml:lang="en"> <div class="titlepage"> <div> <div> <h2 class="title"><a id="dbstl_containers"></a>Chapter 2. Dbstl Container Classes </h2> </div> </div> </div> <p>A dbstl container is very much like a C++ STL container. </p> <p>It stores a collection of data items, or key/data pairs. Each container is backed by a Berkeley DB database created in an explicit database environment or an internal private environment; And the database itself can be created explicitly with all kinds of configurations, or by dbstl internally. For each type of container, some specific type of database and/or configurations must be used or specified to the database and its environment. dbstl will check the database and environment conform to the requirement. When users don't have a chance to specify a container's backing database and environment, like in copy constructors, dbstl will create proper databases and/or environment for it. There are two helper functions to make it easier to create/open an environment or database, they are <a class="link" href="stldbstl_global_functionsopen_db.html" title="open_db">dbstl::open_db()</a> and <a class="link" href="stldbstl_global_functionsopen_env.html" title="open_env">dbstl::open_env()</a> ; </p> <h4><a id="idm1330024"></a> See Also </h4> <p> </p> <p><a class="link" href="stldbstl_global_functionsopen_db.html" title="open_db">dbstl::open_db()</a> <a class="link" href="stldbstl_global_functionsopen_env.html" title="open_env">dbstl::open_env()</a> <a class="link" href="db_vector.html" title="Chapter 4. Db_vector">db_vector</a> <a class="link" href="db_map.html" title="Chapter 5. Db_map">db_map</a> <a class="link" href="db_multimap.html" title="Chapter 6. Db_multimap">db_multimap</a> <a class="link" href="db_set.html" title="Chapter 7. Db_set">db_set</a> <a class="link" href="db_multiset.html" title="Chapter 8. Db_multiset">db_multiset</a> </p> <h4><a id="idm2358808"></a> Public Members </h4> <div class="informaltable"> <table border="1" width="80%"> <colgroup> <col /> <col /> </colgroup> <thead> <tr> <th>Member</th> <th>Description</th> </tr> </thead> <tbody> <tr> <td> <a class="link" href="db_container.html" title="Chapter 3. Db_container"> db_container</a> </td> <td> db_container</td> </tr> <tr> <td> <a class="link" href="db_map.html" title="Chapter 5. Db_map"> db_map</a> </td> <td> db_map</td> </tr> <tr> <td> <a class="link" href="db_multimap.html" title="Chapter 6. Db_multimap"> db_multimap</a> </td> <td> db_multimap</td> </tr> <tr> <td> <a class="link" href="db_set.html" title="Chapter 7. Db_set"> db_set</a> </td> <td> db_set</td> </tr> <tr> <td> <a class="link" href="db_multiset.html" title="Chapter 8. Db_multiset"> db_multiset</a> </td> <td> db_multiset</td> </tr> <tr> <td> <a class="link" href="db_vector.html" title="Chapter 4. Db_vector"> db_vector</a> </td> <td> db_vector</td> </tr> </tbody> </table> </div> <h4><a id="idm1321672"></a> Group</h4> <p> None</p> </div> <div class="navfooter"> <hr /> <table width="100%" summary="Navigation footer"> <tr> <td width="40%" align="left"><a accesskey="p" href="stldbstl_global_functionsclose_db_cursors.html">Prev</a> </td> <td width="20%" align="center"> </td> <td width="40%" align="right"> <a accesskey="n" href="db_container.html">Next</a></td> </tr> <tr> <td width="40%" align="left" valign="top">close_db_cursors </td> <td width="20%" align="center"> <a accesskey="h" href="index.html">Home</a> </td> <td width="40%" align="right" valign="top"> Chapter 3. Db_container </td> </tr> </table> </div> </body> </html>